- PHETYR
Phenylalanine & Tyrosine
Specimen:
Test Code
PHETYR
Specimen Name
Phenylalanine & Tyrosine
Collect
1-GreenTop (Na-Heparin, Lithium-Heparin)
Submit
1 mL (Min: 0.5 mL) Plasma Frozen
Special Handling
Transfer plasma to a standard transport tube.
Rejection Criteria
Hemolyzed specimens.
Stability
Ambient Unacceptable; Refrigerated 24 hours; Frozen 1 month
Methodology
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed
Sunday - Saturday
Reported
3-8 days
CPT Codes
- 82131
- 84510
Components
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Additional Information
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Common Lab Definitions
- Serum
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